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Subject[PATCH] drm/mediatek: Optimize functions which do not need to return
Date
Function mtk_hdmi_aud_set_input always return 0, no need to
keep the return value. Functions mtk_hdmi_aud_enable_packet &
mtk_hdmi_aud_on_off_hw_ncts are the same, these two functions
just call next functions. Maybe it`s a bit better to just call
the inner function.

Signed-off-by: Bernard Zhao <bernard@vivo.com>
---
drivers/gpu/drm/mediatek/mtk_hdmi.c | 27 +++++++--------------------
1 file changed, 7 insertions(+), 20 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
index a97725680d4e..f1d987df0550 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -870,19 +870,8 @@ static void mtk_hdmi_video_set_display_mode(struct mtk_hdmi *hdmi,
mtk_hdmi_hw_msic_setting(hdmi, mode);
}

-static int mtk_hdmi_aud_enable_packet(struct mtk_hdmi *hdmi, bool enable)
-{
- mtk_hdmi_hw_send_aud_packet(hdmi, enable);
- return 0;
-}

-static int mtk_hdmi_aud_on_off_hw_ncts(struct mtk_hdmi *hdmi, bool on)
-{
- mtk_hdmi_hw_ncts_enable(hdmi, on);
- return 0;
-}
-
-static int mtk_hdmi_aud_set_input(struct mtk_hdmi *hdmi)
+static void mtk_hdmi_aud_set_input(struct mtk_hdmi *hdmi)
{
enum hdmi_aud_channel_type chan_type;
u8 chan_count;
@@ -912,8 +901,6 @@ static int mtk_hdmi_aud_set_input(struct mtk_hdmi *hdmi)
chan_count = mtk_hdmi_aud_get_chnl_count(chan_type);
mtk_hdmi_hw_aud_set_i2s_chan_num(hdmi, chan_type, chan_count);
mtk_hdmi_hw_aud_set_input_type(hdmi, hdmi->aud_param.aud_input_type);
-
- return 0;
}

static int mtk_hdmi_aud_set_src(struct mtk_hdmi *hdmi,
@@ -921,7 +908,7 @@ static int mtk_hdmi_aud_set_src(struct mtk_hdmi *hdmi,
{
unsigned int sample_rate = hdmi->aud_param.codec_params.sample_rate;

- mtk_hdmi_aud_on_off_hw_ncts(hdmi, false);
+ mtk_hdmi_hw_ncts_enable(hdmi, false);
mtk_hdmi_hw_aud_src_disable(hdmi);
mtk_hdmi_clear_bits(hdmi, GRL_CFG2, CFG2_ACLK_INV);

@@ -959,7 +946,7 @@ static int mtk_hdmi_aud_output_config(struct mtk_hdmi *hdmi,
struct drm_display_mode *display_mode)
{
mtk_hdmi_hw_aud_mute(hdmi);
- mtk_hdmi_aud_enable_packet(hdmi, false);
+ mtk_hdmi_hw_send_aud_packet(hdmi, false);

mtk_hdmi_aud_set_input(hdmi);
mtk_hdmi_aud_set_src(hdmi, display_mode);
@@ -968,8 +955,8 @@ static int mtk_hdmi_aud_output_config(struct mtk_hdmi *hdmi,

usleep_range(50, 100);

- mtk_hdmi_aud_on_off_hw_ncts(hdmi, true);
- mtk_hdmi_aud_enable_packet(hdmi, true);
+ mtk_hdmi_hw_ncts_enable(hdmi, true);
+ mtk_hdmi_hw_send_aud_packet(hdmi, true);
mtk_hdmi_hw_aud_unmute(hdmi);
return 0;
}
@@ -1097,13 +1084,13 @@ static int mtk_hdmi_output_init(struct mtk_hdmi *hdmi)

static void mtk_hdmi_audio_enable(struct mtk_hdmi *hdmi)
{
- mtk_hdmi_aud_enable_packet(hdmi, true);
+ mtk_hdmi_hw_send_aud_packet(hdmi, true);
hdmi->audio_enable = true;
}

static void mtk_hdmi_audio_disable(struct mtk_hdmi *hdmi)
{
- mtk_hdmi_aud_enable_packet(hdmi, false);
+ mtk_hdmi_hw_send_aud_packet(hdmi, false);
hdmi->audio_enable = false;
}

--
2.28.0
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